Priming device



* "OFFICE? PATRICK J'i. MQINTYBE, or cnANsronrnoDE- ISLAND, assrenonro UNITED wmr.

AND SUPPLY COMPANY, A CORPORATION OF ILHODE ISLAND- r ran/[ins DEVICE.

To all whom it may concern:

Be it known that I, PATRICK J. MOINTYRE, a citizen of the United States, residing at Cranston, in the county of Providence' and State of Rhode Island,- have invented 'cer-' tain new and useful Improvements in Priming Devices, ofwhich the following is a specification. i

My invention relates to priming devices "for use on internal combustion engines, and its primary objects are to insure against leakage, toenablethe axial passage of the body toibe cleared of carbon or other accuinulations by the explosion or compression of the engine charge, bya' wire, or by a drill,

' and without detachment of the'body; to permit removal 01"- any accidental accumulation of dirt in the axial passage of the plug without dismounting the latter; to permit and facilitate disassemblage of the parts, and to cheapen the construction of the device.

, f. To the accomplishment of the foregoing andrelated ends, said invention consists in the means hereinafter described, and embodied in the claims. I

'In {the accompanying drawings illustrating the principles of this invention, and which constitute a part'of this specification.

Figure 1 is a side elevation of my priming device,

Fig. 2, an enlarged central vertical section of the same,

Figs. 3 and 4, similar partial sections of portions of the same showing the plug in different positions ofrotation, and Fig. 5, a section of the plug on line 5-5 of Fig. 2.

Like reference characters indicate like parts throughout the views.

In the construction illustrated 7 is the primer body with the threaded lower portion 8 adapted for insertion in a cylinder 9. In this instance the cylinder shown is of the inclined type. The upper portion of the body consists of a spherical bearing 10 having a diametrically disposed tapering seat 11, in this instance inclined to the body to the degree of inclination of the cylinder wall .in which threaded portion 8 is to be inserted. A rotatable tapering plug 12 in the seat 11 has an enlarged end portion or head 13. The opposite end portion of the plug is reduced forming a shoulder 14 and a stem 15.

I Specification of .Iietters Patent.

7 Patented Oct. 19, 1 920. .1. Application filed March 17, 1920. serial No. 366,505.

Near its end the stem has a groove 17 to receive a locking plate 18 inclosedby the cap 19 engaged by a helical spring 20 pressing against a washer 21 abutting against the shoulder 14; and head 10.

In-the head 13 is a radial hole 24 in which is mounted a tubular arm 25 terminating in a hem1spher1cal cup 26 and disposed at right angles to theplug. The center of the arm .25 constitutes a longitudinal passage 27 ,and

near'itsinner end the former has diametri-' cally opposite openings 29 in its walls.

A threaded opening 31extends from the hole 2tto the periphery of the head 13 to receive a clamping screw 33 adapted to abut against the 25. Registering with one of the openings 29 is an axial passage 35 in the plug from .which extends an inclined port 36 adapted to register with an axial passage extending throughout the body. The por-- position of rotation only of the plug 12 does the port 36 register with the portion 37 of the body passage, namely in the position of priming shown in Figs. 1 and 2'. In no position of rotation can the ort 36 communicate with the ortion 38 o the body passage. Hence no eakage of oil is possible.

.At an angle of ninety degrees from the port, measured on the periphery of the plug, is a transversely disposed longitudinally inclined passage 40 through the plug communicating with the port 36 at the merging point of the port with the passage 35. In

only one position of rotation of the plug does the passage 40 register with the body passage37, 38, namely in one horizontal position of the arm 25. r This osition is shown in Fig. 3, wherein the parts are disposed for cleaning. Thus disposed,a continuous passage is afi'orded from the interior of the engine cylinder to the atmosphere whereby the passage 37 -may be cleared; or a wire or drill is receivable in the latter passage for cleaning without detaching the priming device from the cylinder.

In Fig. 4 is shown the position of the parts when the arm 25 is depressed into normal or non-cleaning and non-priming posiit is accessible by removing the threaded plug 33 and inserting the cleaning implement'through the opening 31. The removal of the member 33 also permits the withdrawal'of the arm 25 when desired.

' facilitates the drilling thereof and lessens the cost of construction. i

The inclined position of theiplug 12relatively to the body 7 insures a vertical posi-V tion of the cup 26 when the p'lugis mounted in the wall of an inclined cylinder. 7 t It is to beunderstood that the invention is not limited tothe specific form herein illustrated and described but may be embod iied in other forms without departure from itsspirit as defined by the following claims.

1 claim 1 v 1. In a priming device, a body provided with a longitudinal passage throughout its length, a plug valve rotatably mounted in the body provided with a longitudinal passage, and with a port registerable with the first passage, and with a transverse passage extending through the valve and'registerable with the first passage, an arm on the valve, and. a cup on the arm, said arm be ing provided with a passage communicating with the cup and with the second longitudinal passag I i 2. In a primingdevice, a body provided with a longitudinal passage throughout its length, ahplug valve rotatably mounted in the body intersecting the passage and provided with an axial passage, and with a port registerable with the first passage, and with a transverse passage communicating with the port and registerable withthefirst passage, an arm on theplug, and a cup on the arm, said arm being'provided with a :pas-

sage communicating with the cup and With the axial passage. I

3. In apriming device,a

body provided with'a longitudinal passage throughout its with an inclined port registerable with the The dlSPOSltdOIl of the varlous passages valve, anda cupr'on the arm, .said arm being provided with a passage eommu nicating .with the cup'and with the axial assage.

4.-'In a priming device,a bo y provided withfalongitudinal passage, a plugvalve I rotatably mounted in the body provided withan'axial passage, a portregisterable with the first passage, a, radial hole, and a opening, a cup on the arm, and a clamping screw in the threaded opening. a

s threaded opening extendingtothe hole in alinement with the axial passage, a tubular 5. In a priming device, a body provided I with a longitudinal passage, a plug valve rotatably mounted in the body provided with an axial passage, a port registerable with the first passage, a radial hole, and a threaded opening extending'to thehole in alinement with the axial passage, a tubular arm in the hole provided with alateral opening adapted to register with. the axial. passage, a cup on the arm, and a clamping screw in the threaded opening.

In testimony whereof I haveafiixed my signature. i

PATRICK J. MCINT RE." 

